| 1 | = CMake Macro Reference: `boost_add_executable` = |
| 2 | |
| 3 | Creates a new executable from source files. |
| 4 | |
| 5 | {{{ |
| 6 | boost_add_executable(exename |
| 7 | source1 source2 ... |
| 8 | [COMPILE_FLAGS compileflags] |
| 9 | [feature_COMPILE_FLAGS compileflags] |
| 10 | [LINK_FLAGS linkflags] |
| 11 | [feature_LINK_FLAGS linkflags] |
| 12 | [LINK_LIBS linklibs] |
| 13 | [feature_LINK_LIBS linklibs] |
| 14 | [DEPENDS libdepend1 libdepend2 ...] |
| 15 | [feature] |
| 16 | [NO_INSTALL]) |
| 17 | }}} |
| 18 | |
| 19 | where {{{exename}}} is the name of the executable (e.g., "wave"). {{{source1}}}, |
| 20 | {{{source2}}}, etc. are the source files used to build the executable, e.g., |
| 21 | cpp.cpp. If no source files are provided, "{{{exename.cpp}}}" will be |
| 22 | used. |
| 23 | |
| 24 | This macro has a variety of options that affect its behavior. In |
| 25 | several cases, we use the placeholder "feature" in the option name to |
| 26 | indicate that there are actually several different kinds of options, |
| 27 | each referring to a different build feature, e.g., shared libraries, |
| 28 | multi-threaded, debug build, etc. For a complete listing of these |
| 29 | features, please refer to the page on [wiki:CMakeBuildFeatures CMake |
| 30 | Build Features]. |
| 31 | |
| 32 | The options that affect this macro's behavior are: |
| 33 | |
| 34 | COMPILE_FLAGS:: |
| 35 | Provides additional compilation flags that will be |
| 36 | used when building the executable. |
| 37 | |
| 38 | feature_COMPILE_FLAGS:: |
| 39 | Provides additional compilation flags that |
| 40 | will be used only when building the executable with the given |
| 41 | feature (e.g., {{{SHARED_COMPILE_FLAGS}}} when we're linking against |
| 42 | shared libraries). Note that the set of features used to build the |
| 43 | executable depends both on the arguments given to |
| 44 | {{{boost_add_executable}}} (see the "feature" argument description, |
| 45 | below) and on the user's choice of variants to build. |
| 46 | |
| 47 | LINK_FLAGS:: |
| 48 | Provides additional flags that will be passed to the |
| 49 | linker when linking the executable. This option should not be used |
| 50 | to link in additional libraries; see {{{LINK_LIBS}}} and {{{DEPENDS}}}. |
| 51 | |
| 52 | feature_LINK_FLAGS:: |
| 53 | Provides additional flags that will be passed |
| 54 | to the linker when linking the executable with the given feature |
| 55 | (e.g., {{{MULTI_THREADED_LINK_FLAGS}}} when we're linking a |
| 56 | multi-threaded executable). |
| 57 | |
| 58 | LINK_LIBS:: |
| 59 | Provides additional libraries against which the |
| 60 | executable will be linked. For example, one might provide "expat" |
| 61 | as options to LINK_LIBS, to state that the executable will link |
| 62 | against the expat library binary. Use LINK_LIBS for libraries |
| 63 | external to Boost; for Boost libraries, use DEPENDS. |
| 64 | |
| 65 | feature_LINK_LIBS:: |
| 66 | Provides additional libraries to link against |
| 67 | when linking an executable built with the given feature. |
| 68 | |
| 69 | DEPENDS:: |
| 70 | States that this executable depends on and links against |
| 71 | a Boostlibrary. The arguments to DEPENDS should be the unversioned |
| 72 | name of the Boost library, such as "boost_filesystem". Like |
| 73 | LINK_LIBS, this option states that the executable will link |
| 74 | against the stated libraries. Unlike LINK_LIBS, however, DEPENDS |
| 75 | takes particular library variants into account, always linking to |
| 76 | the appropriate variant of a Boost library. For example, if the |
| 77 | {{{MULTI_THREADED}}} feature was requested in the call to |
| 78 | boost_add_executable, DEPENDS will ensure that we only link |
| 79 | against multi-threaded libraries. |
| 80 | |
| 81 | feature:: |
| 82 | States that the executable should always be built using a |
| 83 | given feature, e.g., SHARED linking (against its libraries) or |
| 84 | MULTI_THREADED (for multi-threaded builds). If that feature has |
| 85 | been turned off by the user, the executable will not build. |
| 86 | |
| 87 | NO_INSTALL:: |
| 88 | Don't install this executable with the rest of Boost. |
| 89 | |
| 90 | OUTPUT_NAME:: |
| 91 | If you want the executable to be generated somewhere |
| 92 | other than the binary directory, pass the path (including |
| 93 | directory and file name) via the OUTPUT_NAME parameter. |
| 94 | |
| 95 | == Example == |
| 96 | |
| 97 | The Boost.Wave library also includes the {{{wave}}} tool, which |
| 98 | provides a complete C89/C99/C++ preprocessor. It uses the Wave, |
| 99 | Program Options, Filesystem, and Serialization libraries in Boost and |
| 100 | is built with the following invocation of {{{boost_add_executable}}}: |
| 101 | |
| 102 | {{{ |
| 103 | boost_add_executable(wave cpp.cpp |
| 104 | DEPENDS boost_wave boost_program_options boost_filesystem boost_serialization |
| 105 | ) |
| 106 | }}} |
| 107 | |
| 108 | This example is from [http://svn.boost.org/svn/boost/sandbox-branches/boost-cmake/boost_1_34_0/tools/wave/CMakeLists.txt tools/wave/CMakeLists.txt]. |
| 109 | |
| 110 | == Where Defined == |
| 111 | This macro is defined in the Boost Core module in [http://svn.boost.org/svn/boost/sandbox-branches/boost-cmake/boost_1_34_0/tools/build/CMake/BoostCore.cmake tools/build/CMake/BoostCore.cmake] |